A d-shaped part and a u-shaped part mounted on a common axis so as to permit relative rotation between the parts. The u-shaped part has a pin or a bolt across the open legs.
NSN 6240-01-570-2009
NSN 6645-01-135-5449
NSN 6645-01-512-2260
NSN 5855-01-553-3368
NSN 4140-00-890-6447
NSN 6240-00-573-4716
NSN 5996-00-382-0281
NSN 4140-00-232-9859
NSN 5930-00-071-5061
NSN 5915-01-512-0131
NSN 6150-00-751-9173
NSN 5960-01-372-5609